See Report 19-P-0251. OIG states that it conducted an audit to determine the effectiveness of EPA oversight in assuring “that emission stack tests are conducted in accordance with EPA regulation, ...

With low particulate loading common in stack emissions these days, particulate matter measurement can be difficult using traditional techniques. Microscopical measurement of particle-size ...

A number of potential sources can cause chronic flare and stack sampling issues. These issues in petrochemical and refining operations (Figure 1) are caused by poorly or inaccurate specified sampling ...